PRC1099A-MS 13-1
Chapter 13: Internal Options
This chapter covers the PRC1099A’s optional internal features that can be
added to the transceiver at the customer’s request. Refer to the PRC1099A
Operator manual (PRC1099A-MSOP) for complete operating instructions.
13.1 Automatic Link Establishment Option (1099ALE)
The Automatic Link Establishment (ALE) board contains two processors that
work together to perform all the ALE functions. The first main processor is a
standard 8-bit processor that processes the ALE data into meaningful messages
and call signs for the operator. The second processor is a high-speed digital
signal processor (DSP) that generates the transmit ALE tones and detects the
incoming ALE tones for processing by the main processor. The two processors
communicate through the Dual Port RAM board, leaving messages for each
other to process.
Figure 13-1 ALE Block Diagram
Clock
Oscillator
Control
Logic
Serial I/O
PTT I/O
Audio I/O
Clock
Oscillator
Reset
Controller
Microprocessor
EPROM
Program
Storage
Buffers
Memory
Backup
Dual
Port
RAM
Digital
Signal
Processor
Audio
Buffers
Audio
Interface
-5V
Generator
To Next Page
Loading...
